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Key Terms

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Exam Essentials

You must understand IPX addressing. An Internetwork Packet
Exchange (IPX) address is 10 bytes long. The network portion is 4 bytes,
and the host part is 6 bytes. The network portion is made up by the net-
work administrator. All network numbers must be the same on a network
segment. An example of an IPX address is 10.abcd.abcd.abcd. The first
number, 10, is the network number. This can be up to four bytes (eight
characters hex). The last six bytes is the hardware address of the host.

Remember your Ethernet frame types. There are four Ethernet frame
types that can be configured on your router with IPX: 802.3, which is the
default on an IPX interface, and is called Novell-Ether; 802.2, which is
called SAP; Ethernet_II (also called ARPA); and SNAP.

Understand how to configure basic IPX.

From global configuration

mode, type ipx routing to enable IPX. Then assign your network numbers
on all your router's interfaces with the ipx network number command.

Understand how to create a secondary interface. You can create a sec-
ondary interface to support multiple frame types on an Ethernet interface,
in two ways. One is to use the secondary command:

ipx network 10a encapsulation sap secondary

This will add the 802.2 frame type support on the interface. You can also
create a subinterface:

int e0.10

ipx network 10a encapsulation sap

This configuration accomplishes the same thing as the secondary com-
mand, but it is just done differently.

Key Terms

e sure you're familiar with the following terms before taking the exam:

encapsulation

hop counts

frame types

socket

Get Nearest Server (GNS)

virtual circuit

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